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Chemically Resistant adhesives

Lord Adhesives CoolTherm™ SC-324 Thermally Conductive Epoxy Encapsulant
Categories: Polymer; Thermoset; Epoxy; Epoxy, Thermally Conductive

Material Notes: LORD CoolTherm™ SC-324 thermally conductive silicone encapsulant is a two-component system designed to provide excellent thermal conductivity for electrical/electronic encapsulating applications, while retaining desirable properties associated with silicones.

Features: exhibits low shrinkage and stress on components as it cures. composed of an addition-curing polydimethyl siloxane polymer that will not depolymerize when heated in confined spaces. maintains low viscosity for ease of component encapsulation compared to other highly thermally conductive materials. provides excellent thermal shock resistance.

All information provided by Lord.

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Physical PropertiesMetricEnglishComments
Specific Gravity 3.20 g/cc3.20 g/ccAll components
Water Absorption <= 0.10 %<= 0.10 %cured; ASTM D 570-81
Viscosity  30000 cP
@Temperature 25.0 °C
30000 cP
@Temperature 77.0 °F
mixed
 35000 cP
@Temperature 25.0 °C
35000 cP
@Temperature 77.0 °F
SC-324 Resin
 35000 cP
@Temperature 25.0 °C
35000 cP
@Temperature 77.0 °F
SC-324 Hardener
 
Chemical PropertiesMetricEnglishComments
Ionic Impurities - Na (Sodium) <= 10 ppm<= 10 ppmcured
Ionic Impurities - K (Potassium) <= 10 ppm<= 10 ppmcured
Ionic Impurities - Cl (Chloride) <= 10 ppm<= 10 ppmcured
 
Mechanical PropertiesMetricEnglishComments
Hardness, Shore A 5050cured; ASTM D 2240
Tensile Strength 0.820 MPa
@Temperature 25.0 °C
119 psi
@Temperature 77.0 °F
cured; ASTM D 412
Elongation at Break 10 %10 %ASTM D 412
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity 2.00e+13 ohm-cm
@Temperature 25.0 °C
2.00e+13 ohm-cm
@Temperature 77.0 °F
cured; ASTM D 257
Dielectric Strength 7.40 kV/mm188 kV/in
 
Thermal PropertiesMetricEnglishComments
CTE, linear 105 µm/m-°C58.3 µin/in-°FASTM D 2240
Thermal Conductivity 4.00 W/m-K27.8 BTU-in/hr-ft²-°FHot Disc Transient Method, cured
 
Processing PropertiesMetricEnglishComments
Working Life 30.0 min
@Temperature 25.0 °C
30.0 min
@Temperature 77.0 °F
Mixed
Shelf Life 6.00 Month
@Temperature 25.0 °C
6.00 Month
@Temperature 77.0 °F
each component from date of manufacture
 
Descriptive Properties
AppearanceLight Pink LiquidMixed
 Pink LiquidSC-324 Resin
 White LiquidSC-324 Hardener
Extractable Ionic Contaminants10 ppm maxAmmonium
 10 ppm maxBromide
 10 ppm maxSulfate

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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